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Killer Sponges

Group of carnivorous sponges. Photo:  Monterey Bay Aquarium

In 1995 scientists first realized that not all sponges spent their days sitting and just filtering out their food when they discovered carnivorous sponges in the Mediterranean. Since then nearly 20 more than 130 species of them have been found, seven that are in found in the Northeast Pacific, off the coast of North America. Recently researchers from Monterrey Bay Aquarium have discovered four new species. The sponges have some fearsome hooks that can be seen with an electron microscope.

Drilling Holes in Aquariums

Free How To Guide for drilling holes in glass aquariums

What!? I want it to hold water, right? Well yes, but you will also have plumbing that is coming into and out of your tank that provides water flow, creates currents, provides overflow protection, removes nutrients and accommodates other apparatus such as protein skimmers and sumps. If your tank is not already drilled for these you can do it yourself using diamond hole saws and this free “How to Drill for Bulkhead Fittings Using Diamond Hole Saws” guide.

Visually documenting reefs


Changing ocean conditions has a group of reef mappers with the Catlin Seaview Survey setting out to visually document coral reefs. These modern day cartographers are combining science, aesthetics, and techniques to document reefs around the world, enabling changes to be clearly monitored over time. This will then aid scientists, policy makers and the general public to visually comprehend issues threatening reefs worldwide. The Catlin Seaview Survey, in collaboration with Google, the University of Queensland and many others, will create

secret life of corals time lapse


By day most hard corals colorful benign looking. By night they turn into fierce predators. Daniel Stoupin took 150,000 macro photography shots to create this amazing clip. Each frame of the video is actually a stack that consists of 3-12 shots where in-focus areas are merged. Just the intro and last scene are regular real-time footage, the rest is frames made from this merger of individual macrophotography images. After watching the video find out more about the project and slow